@conference {cheney2009provenance,
	title = {Provenance: a future history},
	booktitle = {Proceedings of the 24th ACM SIGPLAN conference companion on Object oriented programming systems languages and applications},
	year = {2009},
	pages = {957{\textendash}964},
	publisher = {ACM},
	organization = {ACM},
	author = {Cheney, James and Stephen Chong and Foster, Nate and Seltzer, Margo and Vansummeren, Stijn}
}
